1 /* Copyright (C) 2008 MySQL AB 2 Use is subject to license terms 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License, version 2.0, 6 as published by the Free Software Foundation. 7 8 This program is also distributed with certain software (including 9 but not limited to OpenSSL) that is licensed under separate terms, 10 as designated in a particular file or component or in included license 11 documentation. The authors of MySQL hereby grant you an additional 12 permission to link the program and your derivative works with the 13 separately licensed software that they have included with MySQL. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License, version 2.0, for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ 23 24 #ifndef STOP_FOR_CRASH_HPP 25 #define STOP_FOR_CRASH_HPP 26 27 #include "SignalData.hpp" 28 29 /* 30 The GSN_STOP_FOR_CRASH signal is only used in multi-threaded ndbd. 31 32 It is used during crash handling, sent as a prio A signal from the 33 crashing thread to all other threads to make sure that they stop before 34 generating the crash dump (to avoid dumping an inconsistent state of jam() 35 or signal buffer). 36 */ 37 38 class StopForCrash { 39 friend class SimulatedBlock; 40 41 friend bool printSTOP_FOR_CRASH(FILE *,const Uint32 *, Uint32, Uint16); 42 public: 43 STATIC_CONST( SignalLength = 1 ); 44 45 public: 46 Uint32 flags; // No information in this signal atm. 47 }; 48 49 #endif 50